Magnetic counter



C. H. VEEDER MAGNETIC ACOUNTER Filed Aug. 14. 1922 2 Sheets-Sheet l El'9 d) C fw @91 .9 d) l f/S WITNESS M BW Jan. 15, 1924.

C. H. VEEDER MAGNETIC COUNTER Filed Aug. 14. 1922 2 Sheets-Sheet 2 WlTNESS aww Patented Jan. 15, 1924.

' vUNITED STATES 1,480,738 PATENT OFFICE.-

CURTIS HUSSEY VEEDER, 0F HARTFORD, CONNECTICUT, ASSIGNOR TO- THE VEEDERMANUFACTURING COMPANY, 0F HARTFORD, CONNECTICUT, A CORPORATION 0FCONNECTICUT.

MAGNETIC COUNTER.

Application filed August 14, 1922. Serial No. 581,693.

To all whom, it may concern:

Be it known that I, CURTIS HUssEY VEEDER, a citizen of the UnitedStates, residing in Hartford, in the State of Connecticut, have inventedcertain new and useful* Improvements in Magnetic Counters, of which thefollowing isfwa specification, reference being had to the accompanyingdrawings, forming a part hereof.

For many purposes, such as the counting of sheets of paper as they issuefrom a cutter or from a press, counters actuated through the closing ofan electric circuit 'commend themselves because of the responsiveness ofthe circuit closing devices to the slight force of the moving object. Onthe other hand such-counters, as heretofore constructed, have failed togive complete satisfaction in some cases because of the relativesluggishness of movement f of the electromagnetic devices energized bythe closing of the circuit and depended upon to operate the countingmechanism. The core of a solenoid, for example, is relatively slow instarting its movement because of its own inertia which must be overcome.Moreover, since the movement of the solenoid is a sliding movement thefriction to be overcome results in sluggishness of movement.Furthermore, when the core of a solenoid has been set in motion its "ownmomentum sometimes brings about an overthrow of the counting mechanism.Since magnetic counters are often desirable when the speed of countingis great, a speed of more than one thousand counts per minute not beingunusual, the sluggishness referred to is particularly undesirable. Inthe effort to overcome the sluggishness of magnetic counters it has beenfound that an electromagnetic device vhaving an oscillating armature canbe made very lively, that is free from sluggishness, iii operation,especially :when the spring tensiom which tends to return the armatureto its initial or zero position, is properly applied to the armatureland the armature is properly supported in relation to the held ofthe'iiiagnets and the mechanical devices through which the movement ofthe armature is inade to operate the counting mechanism, are properlyconstructed, while the tendency of the rapidly oscillating armature tocause an overthrow of the counting mechanism is counteracted by `aproper construction of the transmitting mechanism.

The present invention is intended to overcome the diiculties heretoforefound to be incident to the use of magnetic counters and is concernedparticularly with the mounthereinafter with reference to theaccompanying drawings in which it is illustrated as embodied in asuitable form of the structure, and in which-l Figure l `is a view invertical, longitudinal section of a. counter and its lelectromagneticactuating mechanism which embodies in suitable formthe several featuresof improvements to be described.

Figure is a view of the same in horizontal section on the planeindicated on the broken line 2-2 of Figure l, looking in the directionof the arrows.

Figure 3 is a View of the same in elevation as seen from the right handin Figure l, with the end plate of the casing removed.

Figure 4 is a View in vertical, transverse section on the planeindicated by the broken line 4-4 of Figure l, looking in the directionof the arrows.

In the construction illustrated iii the drawing the laminations a of theiield magnets are forced under high pressure .into the brasshshells b.and are held therein under compression by the brass end pieces c whichare' soldered into the shell, long rivets or rods a being also passedthrough the laminations and the end pieces and having their ends upsetin the end pieces so as to insure the lmaintenai'ice of/the laininationsunder compression. End shell plates or thimbles d, soldered into theshells b, have tapped into them bolts e which receive intermediate nutse to bear'against the end frame plates f and terminaly nuts c2 which;bear against the casing end platesg which are properly fitted to theends ofthe main casing g. Other bolts e3, in the upper part of thecasing, run through both end plates g and support the counting mechanismwhich is made up as usual of a succession of number wheels i',

@E ifi-sones of ordinary construction, as indicated at 8, by which thecomplete rotation of each number wheel effects a step by step advancev.A 7c which 1s mounted in suitable bearings provided therefor in the endframe plates f, and the armature plates mounted on the shaft and securedby nuts 7a2. rl`he shaft has a preferably rectangular bo-re 7a3 toreceive a flat torsion spring Z1* which is co1'- rugated at one end, toengage the bore of the shaft, and at the other end, as at k6, is bent toengage a slotted plate k7, which may be held adjustably against theframe plate f by a bridge piecelc8 secured to the frame plate by screws7c", the rotation of the plate 707 inl one direction or the otherserving to adjust the tension of the torsion spring.y

To the end of the shaft la is clamped adjustably, as at Z, one arm Z ofa toggle lever Z, Z2, the -arm Z2 being pivotally connected to anoscillating` pawl frame Z4' which is mounted concentrically with theshaft i7 and carries spring pressed pawls Z5 for co-operating with aratchet wheel 719 in co-operative relation with the first number wheelil. A

hold pawl Z6 is also provided Lfor cooperationv with the ratchet wheelto preventl backward movement thereof. Buffers J7 are secured to 'thesupporting frame to cushion the arrn Z in its oscillations. It will beobserved that the provision of the toggle lever between the oscillatingarmature and the counting mechanism insures the slowing of the movementof the pawl frame as the armature approaches the limit of its movementso that the tendency of the counting mechanism to overthrow in the rapidmovement of 'the armature is counteracted.

Suitable binding posts are provided, as :it m, m. for the usualelectrical connections. The circuits are arranged as usual in devices ofthis general character and need not be illustrated or explained herein.

It will be understood that various changes in details of constructionand arrangement can be made to suit different conditions of use andthat, except as indicated in theaccompanying claims,l -the invention isnot limited to the particular construction and :irrangeinint shown and(lesci'iiied licrein.

I claim as my inventioi:

l. A magnetic counter comprising counting mechanism, an electromagneticactuating mechanism having an oscillating armature, and operativeconnections between the armature and the counting mechanism including atoggle lever. 'i

2. magnetic counter comprising counting mechanism, an electromagneticactuating mechanism having an oscillating armature, an arm secured tothe armature, a ratchet wheel in operative relation with thc countingmechanism, a swinging pawl frame and a second arm connecting the iirstnamed arm to the pawl frame and constituting with the first named arm atoggle lever sys-- tem.

3. A magnetic counter comprising counting mechanism, an electromagneticactuating mechanism, a ratchet wheel in operative relation with thecounting mechanism, a swinging pawl frame, anda toggle lever connectionbetween the actuating mechanism and the pawl lframe.

4. A magnetic counter comprising counting mechanism, an electromagneticactuating mechanism having an oscillating armature with a shaft having arectangular bore, op-

erative connections between the. armature and the counting mechanism,and` a torsion spring within the shaft and having'one end corrugated forengagement with the shaft and the other end secured to a relatively -Xedpoint.

5. A magnetic counter comprising count;

ing mechanism, an electromagnetic actuating mechanism having anoscillating arma-- ture, with a shaft having a rectangular bore,operative connections between the armature and the connecting mechanism,a supporting frame, a. slotted rotarily adjustable plate clamped to thesupporting frame, and a torsion 4spring having one end`corrugated toengage the armature shaft and the other end bent to engage the slottedplate.

This specication signed this 7 day of August A. D. 1922.

Hoiinris HiissEYvEEDi-in.

